Hi again from spain. I have to replace all brakes kit. As i have read in the forum, Land Rover brakes are compatible.
It has been verified that some Land Rover brake parts are completely interchangeable. An export Land Rover 109 Station Wagon six cylinder petrol with brake boost has exactly the same shoes front - fron and rear - rear as the Volvo 303.

Part number front shoes RTC3424 (full set for complete front axle)
Part number rear shoes STC2797 (full set for complete rear axle)
Part number wheel cylinder rear right 243296
Part number wheel cylinder rear left 243297

Im looking for the spare here in Spain and want to ask if anione knows the shoe diameter (cant check by myself now i dont have the car here)

Here in spain (with fast and cheap delivery, need it next week) i have found this three

https://www.bearmach.es/productos/3/recambios/producto/14708/bk-0204/
https://www.bearmach.es/productos/3/recambios/15125/ag89/producto/15125/kit-frenos-delantero-serie-iii-109-zapatas-de-76-mm-ancho/
https://www.bearmach.es/productos/3/recambios/9349/bk-0202/producto/9349/kit-frenos-delanteros-sistema-doble-bombin-por-rueda-zapatas-de-55mm/

Maybe anyone can confirm shoe diameter? in the service docs i cant find it.

Brake drum diameter is 11” front and rear. Brake shoes are 3” wide at the front and 2 1/4” wide at the rear.

The first two links are correct.

Thanks Mo! I have received the order and the shoes fix perfectly

That's great news, happy I could help